<!DOCTYPE html>
<html>
<body>

<h2>Upload File</h2>
<form action="/upload_file/" method="post" enctype="multipart/form-data">
  Select file to upload:
  <input type="file" name="file" id="file">
<!--  <button type="submit" value="Upload File" name="submit">上传</button>-->
  <input type="submit" value="Upload File" name="submit">
</form>

<!--<script>-->
<!--  // JavaScript 用于处理文件上传-->
<!--  const form = document.querySelector('form');-->
<!--  form.addEventListener('submit', (e) => {-->
<!--    e.preventDefault();-->
<!--    const file = document.getElementById('file').files[0];-->
<!--    const formData = new FormData();-->
<!--    formData.append('file', file);-->

<!--    fetch('http://127.0.0.1:8080/upload_file/', {-->
<!--      method: 'POST',-->
<!--      body: formData-->
<!--    })-->
<!--    .then(response => response.text())-->
<!--    .then(text => alert(text))-->
<!--    .catch(error => alert('File upload error: ' + error));-->
<!--  });-->
<!--</script>-->

</body>
</html>